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By Mark Lunney


General
Element name- Nitrogen
Element symbol- N
Atomic number- 7
Atomic mass (not rounded)- 14.007

Atomic Structure
Number of protons within the nucleus- 7
Number of electrons within the neutral atom- 7
Most common isotope (in the proper notation)- Nitrogen-14
Number of neutrons within the nucleus of the most common isotope- 7

Background
Scientist(s) who discovered (or made) the element- Daniel Rutherford
Year it was discovered (or made)- 1772
Origin of the name- From Jean-Antoine Chaptal coming from the word “Nitre” meaning producing
2 most common uses- Compounds make fertilizers and energy storers

Physical Properties
State of matter at room temperature- Gas
Melting point (in °C)- 210°C
Boiling point (in °C)- 195.8°C
Density- 1.251 g/cm cubed
Abundance in earth’s crust- 0.002%

Chemical Properties
Nitrogen is very difficult to react with in its purest state and one of the only elements that react with pure nitrogen is lithium
Nitrogen dioxide, Nitrohydrochloricacid

Besides making up 78% of the Earth’s atmosphere, nitrogen has a ton of uses. Since it is an inert gas, it can be used to replace air and reduce of eliminate oxidation materials. The most important use is in creating ammonia, which in turn is used to make fertilizer, explosives and other materials. Finally, liquid nitrogen is used as a refrigerant for very low temperatures.


Models
ü Bohr model
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ü Lewis dot structure
nitrogenlewisstructure.png


Works Cited:
"Nitrogen Element Facts." Chemicool. N.p., n.d. Web. 04 Jan. 2013.